four students did the experiment on measuring the speed of a pulse propogated through a stretched string as follows :

1.student A sretched his thick cotton string and gave it a strong transverse horizontal jerk

2.student B sretched a thin jute string taut and gave it a mild transverse horizontal jerk

3.student C sretched his thick cotton string very traut and gave it a mild transverse horizontal jerk

4.student D sretched his thin jute string and gave it a strong horizontal jerk

 

the best choice is of which student 

Option (3) is correcct because sting should be unstretchable and provide it a little jerk.

  • 1
 
 

1.student A sretched his thick cotton string and gave it a strong transverse horizontal jerk

  • -1

i think A

  • -1
What are you looking for?